Cruma 670 fume hood. Active carbon filter installed type A for organic vapors. Prefilter. Analog anemometer. Suction speed 0.5 m / s. Average volume of air treated / hour 155 m3 / h. Display with monitored suction speed, type of filter installed, working hours, clock and calendar. Alarms Sound level 48 dB. External dimensions 600x600x1130. User manual.